What are 2N2222 and 2N2222A Transistors? Both transistors are from the same family but the 2N2222A has higher Maximum absolute ratings than 2N2222. For most circuits, a 2N3904 would suffice, however, if you need more above 200mA, a 2N2222 should be used instead. The 2N2222 is the one to choose if you require more than 200mA but not more than 1A. The 2N3904 or 2N2222 will suffice if you require less than 200mA. But if you switch a couple of mA, say, below 100mA, there is not much difference between them. ![]() The difference is in the max continuous current: C945 – 150ma, 2N2222 – 500mA. The 2N3904 is an NPN transistor that can only switch one-third the current of the 2N2222 but has otherwise similar characteristics.Ĭ945 is a general purpose small signal NPN transistor, pretty much like the 2N2222. Which transistor is equivalent of 2N2222? The 2N2907 is an equally popular PNP transistor complementary to the 2N2222. What is the PNP equivalent of the NPN 2222 transistor? I just want a general purpose PNP transistor. It depends on the application as well, they have some differences in their operations so I would suggest you to read their datasheets first. ![]() Ditto, the PN2222 is also the plastic version. What is the difference between NPN 2222 and pn2907? While I agree the 2N2907 is a close complimentary fit one should review the data sheets to make sure, in their application, the selected compliment will work, as others have mentioned. I sincerely hope the original poster, who had a single post, has found a compliment to the 2N2222 by now. Operating Junction Temperature (Tj): 175 ☌ 2N2222 Transistor Equivalent Substitute – Cross-Reference Search What is the operating junction temperature of 2N2222?ĢN2222 Datasheet, Equivalent, Cross Reference Search. It was originally made in the TO-18 metal can as shown in the picture. It is designed for low to medium current, low power, medium voltage, and can operate at moderately high speeds. The maximum collector current of the 2N2222 is 800mA, whereas the bc547's is 100mA.īoth the 2N2222 and the BC547 have the same power dissipation (500mw), the 2N2222 has a DC gain of 75 to 300HFe and the BC547 has a DC gain of 110 to 800HFe, and the 2N2222 has a thermal resistance of 146k/w and the BC547 has a thermal resistance of 83.3 C/w.īecause the transition frequency of 2N2222 is 250MHz and that of BC547 is 300MHz, the noise figure on 2N2222 is 4db and on BC547 is 10db.The 2N2222 is a common NPN bipolar junction transistor (BJT) used for general purpose low-power amplifying or switching applications. The voltage between the emitter and the base is 5 volts in 2N2222 and 6 volts in BC547. The collector to base voltage at 2N2222 is 60 volts, whereas it is 50 volts at BC547, and the collector to emitter voltage is 30 volts at 2N2222 vs 45 volts at BC547. The 2N2222 has an emitter, base, and collector pinout, whereas the BC547 has a collector, base, and emitter pinout. The BC547 transistor came in a to-92 package, but 2N2222 transistors, such as the PN2222 and KN2222, also came in to-92 packages. The 2N transistors were packaged in a to-18 package, which means they were enclosed with metal. The 2N2222 transistor is more powerful than the BC547. Collector to Emitter Voltage (VCE) is 30V. ![]() Collector to Base voltage ( VCB ) is 50V.Collector to Emitter Voltage (VCE) is 45V.DC Current Gain range is 110 to 800 hFE.The maximum frequency on this frequency is 250MHZ, which is the 2N2222 transistor's transition frequency. The trigger terminal's maximum bias voltage is 200 mV, while the 2N2222 transistor's maximum bias current is 200 mA. The maximum collector current of the 2N2222 transistor is 800mA this is the greatest current that this device can handle. The maximum current gain of the 2N2222 transistor is 300hFE, and this number determines the transistor's amplification factor. A bipolar NPN transistor, the 2N2222 is a transistor with two poles.
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